Tire-core.



.L J. FREDERCKSON..

URE CORE.

APPLICATION FILED mman. ma:

Fatented Nov. l5? 12H5.

LABS 1' FREDEEXCKSOJZ', KANSAS CTE?, BIESSURE,

Be it kiiowzo thai; l", J. iREDE/iiiciisoii citizen of the Umte' States, iesismg et Kansas Cliff) in Hw, county of Jackson o Siam of Missouri, have invenieii ceftoi'o new 3o vehicie tires on@ sieucei oi? resilient iubbeij end has a piualiy of cups or i'ecesses formed in the om cumfez'ence thereof, and' :ii-eo a central opening extending about the enire circumference of iie Wheel tire for increasing'the resilient pociviies of the core.

Another object of this inveiiion is to pro e. ire coro which has formed in 'ie ioWez end which is positioned or adjacent io the portion of the tire shoe which is .ab tached to the Wiieei rim, ein annular groove bordered by a pair of outwardly extending poiiits which are aiapd for compreseion owa'rd each oher for causing; the tire core izo be Seated firmly witiiii" interior of die tire shoe for p-ieveioixig; s lppiog or creeping of 'iie coro WV him he Shoe.

in siii. fui''iei object of this. invention io provide a tire gore as specified which provided with e pim'aii-y of circomfo ,sioiiy exciiff' oyei'iings armiged. Within die core for cci-cocine; weight thereof and increasing the resiiieiicy,

With he foregoing and other objects in View iiis invention consists in sucia novei femm-es of constucion, combination and engagement of parte :is Wiii be hereinafter more fuiy desczibed, ami illustratedl iii the accompanying (imo/ings.

:in describing the invenz-ion in etail refe?,- enco will be had 12o the accompanying draw inge wherein like characters designate like or correeponding parte throu'ghoii; the @vereviews, and in which:-

Eigure is a cross sectionai View w. v A .i ia is o Home. seopioved time core the same posii'soiied Within' an ordinary tite shoe. 3 is a Cross secional view through i iiiodiied form of the invention, ami .Figg 4i 1S f'egmentery gers ectiveview of siii another modified form iie t Lorev Referring more peiticuieiiy o the draw-- ings, l designe-tes tile/core as im eriiiezy, wl'iich is consteoted of eiaeic 'or resiiieii robber and shape to coooim to @he con igomii n of die iiiieiioi of ordinary @timshoe im cv d at iii "n of cifewnge, The core l is provideo ich a iuraiv of recesses 3 forme in i'owo aboubvtiie iateio and longitudinal cii'cmxifeience of me core. The coi'e l is iu'fhei prof/ide@ with e ciz'ouiar opening 4 ormed'centreliy therein which extends enirely through che core amd is provided for increasing 'the iesieii: pfocivities of iie core. The core is further pioved with a piufaiity of smeii oeninge 5 which are arranged in rows, aidfexexi completely through the entire lengt-h of the core for decreasing he weight of the core es weli as assisting the openings 3 arid 4: iii-io-` i'easing the resiliency thereof. The operia ings 5 are space/ iii rows iraieiiy of oe een tezo he core and 'he openings in one oircular row are arranged in staggered reiaioii to the openings in the row new iiefeo so es to preventlweakening of the core.

u The corel has :i .groove 6 formeffi in the inner portion or section of the ire or in other woi'dsfoz'med in iie section of the tii'e which is piaceri adiicent he wifi'oe'i im {iio shovm The groove has; iis sides exening mfiiaiy vifoiii emi converging towafl iie ceiiiiii wie md is boi'fiei'ed y poil e 7 mi 8 which foi eogog'emen; wih oiei* come" iisg; i? groove G when ghe ooie :m 8 into engagement with each ohei",

will piace a .strain upon v'iiis Section off' the core and cause the ouer surfaces o1 tile pein;

to firmly engage he inner surface of the faire shoe. The outer surface of the poiis i and 8 exend tongen'tiaily from the ciioumerence ofthe core in '3 of the rawings, si moied. form oi motive core is iiluetmted which em,

bodies a' more 20 having a plurality pi/suo senieiiy semi-similiar shaped opening@ $1?.

spaced in rows both transversely about the circumference and longitudinally along the entire circumference of the core. rl`he core 20 is provided with a central circular opening 22 similar to the opening "l and a plurality ofy small, circumferentially extending openings 23 which 'are disposed staggercdly as are the openings 5 illustrated in theform shown in Figs. l and 2 of the drawings. The core 20 terminates in the pointed edge 24 which is provided for fitting in the tire shoe and this pointed edge of the core is also provided with a plurality of spaced cut out portions or recesses 2V.

In Fig. il of the drawings a further modi- ,ied form of the tire core is shown, wherein the core 30 is constructed practically identical with the core illustrated in Fig 3, with the exception of the fact that the pointed inner edge 3l is free from recesses or cut out portions.

From the foregoing description taken in connection with the accompanying drawings itlwill be apparent to persons Skil-led in the art to whichthis invention appertains that a core for replacing the ordinary in iatable tubes on pneumatic tires has been provided,

whiclroore will eliminate many of the inconveniences contingent with the ordinary inflatable tube among which are the bursting of the inner tube, puncturing of the same or the iattening of the tire shoe when the inflatable tube becomes punctured. The core heretofore described will at all times held the Shoe in its proper position, and is replaceable from one shoe to the other, when the shoe wears to certain extent as to render it useless.

In reducing the invention to practice cerranged in radially disposed circles about the center of said core, the openings in each row being disposed staggeredly to the openings in the circular row next thereto.

2. A core for insertion into an ordinary tire shoe constructed of resilient material and having an annular groove cut in the inner face thereof, points formed upon said core and projecting tangentially from the circumference thereof, said points adapted for compression toward and into engagement with each other for constricting the sides of said groove when said core is placed within the tire shoe for holding the core within the shoe against creeping, said core being provided with a plurality of recesses formed in the outer circumference thereof, an opening formed centrallywithin said core and a plurality of smallopeningsy arranged in circular rows radially of the center of said core an'd extending entirely around the length 'of the core.

ln testimony whereof I aliix my signature vin presence of two Witnesses.

Lans J. rannnnioison. Witnesses Geo. M. NOBLE, Jr.,

Ro'r. J. CLARK. 

